Come on laurel! , I like talking prices down, but £57, for a FR 1955 4th, is pretty damn cheap --unless it was in poor condition. Even on mighty eBay £57 for something that early is quite low. You could easily expect to see an auction like this spiral to over £100, if the condition was top drawer. That said, £70 isn't particularly amazing for a FR 10th; unless, again, it's a really smart copy. Even then...

So, Morgan, no, it isn't a bargain. There are plenty of 1960's copies of LR kicking around.